Question

A solution contains 28% phosphoric acid by mass. This means that________________.
A. 1 L of this solution contains 28 mL of phosphoric acid
B. 1 mL of this solution contains 28 g of phosphoric acid
C. 100 mL of this solution contains 28 g of phosphoric acid
D. 1 L of this solution has a mass of 28 g

Answer 1

Answer:

option c

Explanation:

(mass of phosphoric acid ÷ mass of solution) × 100 = 28%

==> 100 gm of solution contains 28gm of phosphoric acid.

also 1gm = 1 ml  so..

==> 100 ml of this solution has 28g of phosphoric acid.

...hope it helps..